Multi-stage grinding device equipment for calcium carbonate powder raw materials

Abstract

The utility model discloses calcium carbonate powder raw material multi-stage grinding device equipment, and particularly relates to the technical field, the calcium carbonate powder raw material multi-stage grinding device equipment comprises a ball mill, a feeding port of the ball mill is connected with a feeding pipe, a discharging port of the ball mill is connected with a discharging pipe, one end of the feeding pipe is connected with a discharging assembly, the top end of the discharging assembly is connected with a crushing mechanism, and the crushing mechanism is connected with a crushing mechanism. The crushing mechanism comprises a feeding hopper and a guide pipe, a main shaft is arranged in the middle of the feeding hopper and the guide pipe, and a cutting head and a serrated knife are fixed to the outer portion of the main shaft; by means of the crushing mechanism, abrasion of a grinding medium in the ball mill is reduced, calcium carbonate powder cannot be polluted by the grinding medium, through the discharging pipe and the grinding disc, calcium carbonate with smaller particles can be obtained by extruding and grinding the calcium carbonate powder through the discharging pipe and the grinding block on the surface of the grinding disc, and the grinding efficiency is improved. Therefore, the calcium carbonate grinding time of the ball mill is further shortened, and the working efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of calcium carbonate powder processing, in particular to a multi-stage grinding device for calcium carbonate powder raw materials. Background Art

[0002] Calcium carbonate powder is a widely used inorganic compound with a wide range of industrial applications, including as a building material, plastic additive, filler or reinforcing agent in food processing and pharmaceutical industries. Calcium carbonate powder is mainly obtained by grinding blocky calcium carbonate.

[0003] In the Chinese patent publication number CN217140592U, entitled "A ball mill device for producing coarse calcium carbonate powder", it is disclosed that by adjusting the ratio of the front and rear bins and the selection of grinding media, the "saturation grinding" of the ball mill is effectively avoided, so that the product has good stability and fewer black spots. More materials can be ground simultaneously in the entire ball mill, and the material uniformity is stronger. At the same time, the external grading equipment effectively avoids the collection of unqualified products. However, the grinding device still has some shortcomings in actual use. When the calcium carbonate enters the ball mill for grinding, the steel ball grinding medium needs to collide and rub with the calcium carbonate for a long time. The steel ball wears and the impurities on its surface are mixed in the calcium carbonate powder, resulting in the calcium carbonate powder containing impurities and affecting the quality. Utility Model Content

[0004] The utility model aims to provide a multi-stage grinding device for raw materials of calcium carbonate powder to solve the above-mentioned technical deficiencies.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A multi-stage grinding device for calcium carbonate powder raw materials comprises a ball mill, wherein the feed port of the ball mill is connected to a feed pipe, the discharge port of the ball mill is connected to a discharge pipe, one end of the feed pipe is connected to a discharge assembly, the top of the discharge assembly is connected to a crushing mechanism, the crushing mechanism comprises a feed hopper and a conduit, a main shaft is provided in the middle of the feed hopper and the conduit, a cutting head and a toothed cutter are fixed to the outside of the main shaft, the cutting head is located inside the feed hopper, the toothed cutter is located inside the conduit, a driving mechanism is provided on the top of the main shaft, and the discharge assembly comprises a discharge pipe and a conveying pipe.

[0007] Preferably, a grinding disc is provided inside the discharge pipe, a plurality of grinding blocks are provided on the outer wall of the grinding disc, an axle seat is provided inside the conveying pipe, a support plate is provided at the bottom of the axle seat, the outer wall of the support plate is fixedly connected to the inner wall of the conveying pipe, and a plurality of leakage holes are opened on the top of the support plate.

[0008] Preferably, a groove is provided inwardly at the bottom of the grinding disc, a convex shaft is fixed in the middle of the bottom of the grinding disc, an axle groove is provided in the middle of the top of the axle seat, and the bottom end of the convex shaft can be inserted into the axle groove.

[0009] Preferably, the outer wall of the cutting head is provided with a plurality of spiral blades in an annular array.

[0010] Preferably, the feed pipe is a curved pipe, and bases are provided at the bottoms of the feed pipe and the driving mechanism.

[0011] Preferably, the feed hopper is a hollow truncated cone structure, a limit plate is provided on the front surface of the base, an outer wall of the limit plate contacts the outer wall of the conduit and clamps the conduit, and a material trough is provided on the top of the feed hopper.

[0012] Preferably, a support seat is provided at the bottom of the ball mill, and a driving device is also provided on one side of the ball mill.

[0013] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0014] 1. The crushing mechanism is set at one end of the feed pipe of the ball mill. The crushing components in the crushing mechanism can be used to crush the block calcium carbonate in advance. The block calcium carbonate falls from top to bottom and is crushed step by step. Before the block calcium carbonate enters the ball mill, the block calcium carbonate is crushed in advance, which is beneficial to reduce the crushing and grinding time of the ball mill for calcium carbonate, reduce the wear of the grinding medium inside the ball mill, and prevent the calcium carbonate powder from being contaminated by the grinding medium, thereby ensuring the quality of the calcium carbonate powder.

[0015] 2. Through the set discharge pipe and grinding disc, the block calcium carbonate is broken into fine particles of calcium carbonate after being crushed by the crushing mechanism, and then passes through the discharge pipe and is ground by the grinding blocks on the surface of the grinding disc to obtain smaller particles of calcium carbonate, thereby further shortening the grinding time of calcium carbonate in the ball mill and greatly improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a three-dimensional diagram of the crushing component of the utility model;

[0019] Figure 3It is an exploded view of the discharge assembly of the utility model;

[0020] Figure 4 This is a disassembly diagram of the grinding disc and the shaft seat of the utility model;

[0021] Figure 5 It is a structural schematic diagram of the grinding disc of the utility model.

[0022] Description of reference numerals:

[0023] 1. Driving device; 2. Discharging pipe;

[0024] 3. Spindle; 31. Cutting head; 32. Tooth cutter;

[0025] 4. Feed hopper; 5. Material trough; 6. Conduit; 7. Limit plate;

[0026] 8. discharge pipe; 81. grinding disc; 82. shaft seat; 83. grinding block; 84. support plate; 85. leakage hole; 86. shaft groove; 87. groove; 88. convex shaft;

[0027] 9. Conveying pipe; 10. Feeding pipe; 11. Ball mill; 12. Support seat; 13. Driving mechanism; 14. Base. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0029] The utility model provides Figure 1-Figure 5 The multi-stage grinding device for calcium carbonate powder raw materials shown in the figure includes a ball mill 11, a feed port of the ball mill 11 is connected to a feed pipe 10, a discharge port of the ball mill 11 is connected to a discharge pipe 2, one end of the feed pipe 10 is connected to a discharge assembly, the top of the discharge assembly is connected to a crushing mechanism, the crushing mechanism includes a feed hopper 4 and a conduit 6, a material trough 5 is provided on the top of the feed hopper 4, a main shaft 3 is provided in the middle of the feed hopper 4 and the conduit 6, a cutting head 31 and a toothed cutter 32 are fixed to the outside of the main shaft 3, the outer wall of the cutting head 31 is provided with a plurality of spiral blades in an annular array, and the cutting head 31 is located inside the feed hopper 4, the toothed cutter 32 is located inside the conduit 6, a driving mechanism 13 is provided at the top of the main shaft 3, and the discharge assembly includes a discharge pipe 8 and a conveying pipe 9; the block calcium carbonate enters the trough 5 from the top of the feed hopper 4, the driving mechanism 13 drives the main shaft 3 to rotate, and the main shaft 3 drives the cutting head 31 to rotate, and the high-speed rotating cutting head 31 contacts and collides with the block calcium carbonate and breaks the block calcium carbonate, and the calcium carbonate continues to fall downward and passes through the conduit 6. Under the rolling and grinding action of the bottom end of the toothed cutter 32, the calcium carbonate particles are further crushed to obtain fine particles of calcium carbonate.

[0030] like Figure 1-Figure 5As shown, specifically, a grinding disc 81 is provided inside the discharge pipe 8, a plurality of grinding blocks 83 are provided on the outer wall of the grinding disc 81, a shaft seat 82 is provided inside the conveying pipe 9, a support plate 84 is provided at the bottom of the shaft seat 82, the outer wall of the support plate 84 is fixedly connected to the inner wall of the conveying pipe 9, and a plurality of leakage holes 85 are opened on the top of the support plate 84; the calcium carbonate particles pass through the conduit 6 and enter the discharge pipe 8 from the top entrance of the discharge pipe 8, and during the rotation of the grinding disc 81, the grinding blocks 83 squeeze, collide and rub the calcium carbonate particles, the calcium carbonate particles are ground, and finally fall on the support plate 84, and are discharged downward from the leakage holes 85, and then fall into the conveying pipe 9.

[0031] Among them, it should be noted that a groove 87 is opened inward at the bottom of the grinding disc 81, a convex shaft 88 is fixed in the middle of the bottom of the grinding disc 81, and an axle groove 86 is opened in the middle of the top of the axle seat 82, and the bottom end of the convex shaft 88 can be inserted in the axle groove 86; the bottom end of the main shaft 3 can be welded and fixed to the top of the grinding disc 81, and the grinding disc 81 is driven to rotate synchronously during the rotation of the main shaft 3, and the rotation of the grinding disc 81 drives the convex shaft 88 to rotate, and the bottom end of the convex shaft 88 rotates in the axle groove 86.

[0032] like Figure 1-Figure 5 As shown, further, the feed pipe 10 is a curved pipe, and a base 14 is provided at the bottom of the feed pipe 10 and the driving mechanism 13. The base 14 keeps the driving mechanism 13 working stably and reliably, and also supports the feed pipe 10, which is beneficial for the feed pipe 10 to be connected with the feeding port of the ball mill 11.

[0033] like Figure 1-Figure 5 As shown, in this embodiment, the feed hopper 4 is a hollow cone-shaped structure, and a limiting plate 7 is provided on the front surface of the base 14. The outer wall of the limiting plate 7 contacts the outer wall of the conduit 6 and clamps the conduit 6. Two limiting plates 7 are provided to clamp the conduit 6 and limit the position of the conduit 6 to keep the internal structure of the conduit 6 stable.

[0034] like Figure 1-Figure 5 As shown, in this embodiment, a support seat 12 is provided at the bottom of the ball mill 11, and a driving device 1 is also provided on one side of the ball mill 11. The support seat 12 is used to support the driving device 1 and the ball mill 11 to keep the positions of the driving device 1 and the ball mill 11 from moving. The driving device 1 can drive the roller of the ball mill 11 to rotate. This part is the existing technology and will not be elaborated here.

[0035] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A multi-stage grinding device for calcium carbonate powder raw materials, comprising a ball mill (11), wherein the feed port of the ball mill (11) is connected to a feed pipe (10), and the discharge port of the ball mill (11) is connected to a discharge pipe (2), characterized in that: One end of the feed pipe (10) is connected to a discharge assembly, the top end of the discharge assembly is connected to a crushing mechanism, the crushing mechanism comprises a feed hopper (4) and a guide tube (6), a main shaft (3) is arranged in the middle of the feed hopper (4) and the guide tube (6), a cutting head (31) and a toothed knife (32) are fixed to the outside of the main shaft (3), the cutting head (31) is located inside the feed hopper (4), the toothed knife (32) is located inside the guide tube (6), a driving mechanism (13) is arranged at the top end of the main shaft (3), and the discharge assembly comprises a discharge pipe (8) and a conveying pipe (9).

2. A multi-stage grinding device for calcium carbonate powder raw materials according to claim 1, characterized in that: A grinding disc (81) is arranged inside the discharge pipe (8), and a plurality of grinding blocks (83) are arranged on the outer wall of the grinding disc (81). A shaft seat (82) is arranged inside the conveying pipe (9), and a support plate (84) is arranged at the bottom of the shaft seat (82). The outer wall of the support plate (84) is fixedly connected to the inner wall of the conveying pipe (9), and a plurality of leakage holes (85) are opened on the top of the support plate (84).

3. A multi-stage grinding device for calcium carbonate powder raw materials according to claim 2, characterized in that: The bottom of the grinding disc (81) is provided with a groove (87) inwardly, a convex shaft (88) is fixed in the middle of the bottom of the grinding disc (81), and a shaft groove (86) is provided in the middle of the top of the shaft seat (82), and the bottom end of the convex shaft (88) can be inserted into the shaft groove (86).

4. The multi-stage grinding device for calcium carbonate powder raw material according to claim 1, characterized in that: The outer wall of the cutting head (31) is provided with a plurality of spiral blades in a circular array.

5. The multi-stage grinding device for calcium carbonate powder raw material according to claim 1, characterized in that: The feed pipe (10) is a curved pipe, and bases (14) are provided at the bottoms of the feed pipe (10) and the drive mechanism (13).

6. A multi-stage grinding device for calcium carbonate powder raw materials according to claim 5, characterized in that: The feed hopper (4) is a hollow truncated cone-shaped structure. A limit plate (7) is provided on the front surface of the base (14). The outer wall of the limit plate (7) contacts the outer wall of the conduit (6) and clamps the conduit (6). A material trough (5) is provided on the top of the feed hopper (4).

7. The multi-stage grinding device for calcium carbonate powder raw material according to claim 1, characterized in that: A support seat (12) is provided at the bottom of the ball mill (11), and a driving device (1) is also provided on one side of the ball mill (11).

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